/* modern.css - CodeSense 酷森思现代化样式 */

:root {
  /* 主色调 */
  --primary-color: #2563eb;
  /* 深蓝色 */
  --primary-hover: #1d4ed8;
  --secondary-color: #f59e0b;
  /* 金色点缀 */

  /* 中性色 */
  --dark: #1f2937;
  --dark-light: #374151;
  --medium: #9ca3af;
  --light: #f3f4f6;
  --white: #ffffff;

  /* 功能色 */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  /* 字体 */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.5;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-hover);
}

/* 布局 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* 导航栏 */
.navbar {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  display: flex;
  align-items: center;
}

.navbar-brand img {
  height: 32px;
  margin-right: var(--spacing-sm);
}

.navbar-brand-logo {
  width: auto;
  height: 34px;
  margin-right: 0 !important;
  object-fit: contain;
}

@media (max-width: 576px) {
  .navbar-brand-logo {
    height: 30px;
  }
}

.navbar-nav {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.navbar-link {
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--dark-light);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--primary-color);
  background-color: rgba(37, 99, 235, 0.05);
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.navbar-notification-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.notification-count {
  min-width: 1.25rem;
  padding: 0.08rem 0.35rem;
  border-radius: 999px;
  color: #fff;
  background: var(--danger);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.25rem;
  text-align: center;
}

.navbar-button {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.navbar-button:hover {
  background-color: var(--primary-hover);
}

/* 页面内容 */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10000;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  background: var(--dark);
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
  color: var(--white);
}

:where(a, button, input, select, textarea):focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.55);
  outline-offset: 3px;
}

.main-content {
  padding: var(--spacing-xl) 0;
  min-height: calc(100vh - 180px);
}

.main-content:focus {
  outline: none;
}

.page-header {
  margin-bottom: var(--spacing-xl);
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: var(--spacing-md);
}

.page-subtitle {
  color: var(--medium);
  font-size: 1rem;
  max-width: 800px;
}

/* 卡片 */
.card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--dark);
}

.card-badge {
  display: inline-block;
  padding: 4px 8px;
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--primary-color);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.card-body {
  color: var(--dark-light);
  font-size: 0.9375rem;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--light);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-icon {
  margin-right: var(--spacing-xs);
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--primary-color);
}

.btn-secondary:hover {
  background-color: rgba(37, 99, 235, 0.15);
}

.btn-success {
  background-color: var(--success);
  color: var(--white);
}

.btn-success:hover {
  background-color: #0da571;
}

.btn-danger {
  background-color: var(--danger);
  color: var(--white);
}

.btn-danger:hover {
  background-color: #dc2626;
}

/* 表单 */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--dark);
}

.form-control {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--dark);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-error {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

/* 代码编辑器 */
.code-editor {
  font-family: var(--font-mono);
  background-color: #1e293b;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
}

.code-editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #111827;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--white);
}

.code-editor-title {
  font-size: 0.875rem;
  font-weight: 500;
}

.code-editor-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.code-editor-textarea {
  width: 100%;
  min-height: 300px;
  padding: var(--spacing-md);
  background-color: #1e293b;
  color: #e2e8f0;
  border: none;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.code-editor-textarea:focus {
  outline: none;
}

/* 表格 */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.table th {
  font-weight: 600;
  color: var(--dark);
  background-color: #f9fafb;
}

.table td {
  color: var(--dark-light);
}

.table tr:hover td {
  background-color: #f9fafb;
}

/* 徽章和标签 */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-primary {
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--primary-color);
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.badge-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

/* 评分专属徽章（百分制等级） */
.badge-score-fail {
  background-color: #ef4444;
  color: white;
}

.badge-score-basic {
  background-color: #f97316;
  color: white;
}

.badge-score-pass {
  background-color: #eab308;
  color: white;
}

.badge-score-good {
  background-color: #84cc16;
  color: white;
}

.badge-score-excellent {
  background-color: #22c55e;
  color: white;
}

/* 提示和警告 */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--info);
  border-left: 3px solid var(--info);
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border-left: 3px solid var(--success);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--warning);
  border-left: 3px solid var(--warning);
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border-left: 3px solid var(--danger);
}

/* 页脚 */
.footer {
  background-color: var(--white);
  border-top: 1px solid #e5e7eb;
  padding: var(--spacing-lg) 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-note {
  max-width: 28rem;
  margin: 0;
  color: var(--medium);
  font-size: 0.8rem;
  line-height: 1.5;
}

.footer-copyright {
  color: var(--medium);
  font-size: 0.875rem;
}

/* 响应式布局 */
@media (max-width: 768px) {
  .navbar-container {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
  }

  .navbar-nav {
    display: flex !important;
    /* 强制显示 */
    justify-content: center;
    width: 100%;
    flex-wrap: wrap;
    padding: var(--spacing-sm) 0;
    margin-top: var(--spacing-sm);
  }

  .navbar-user {
    width: 100%;
    justify-content: center;
    margin-top: var(--spacing-sm);
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
  }
}

/* 登录和注册页面 */
.auth-container {
  display: flex;
  min-height: 100vh;
  background-color: var(--light);
}

.auth-form-container {
  width: 100%;
  max-width: 480px;
  margin: auto;
  padding: var(--spacing-xl);
  background-color: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
}

.auth-logo {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--dark);
}

.auth-subtitle {
  color: var(--medium);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.auth-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  color: var(--medium);
  font-size: 0.875rem;
}

/* 闪现消息 Toast 容器 */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 覆盖 Bootstrap Toast 默认样式以匹配现代风格 */
.toast {
  background-color: var(--white);
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  overflow: hidden;
}

.toast-header {
  background-color: transparent;
  border-bottom: none;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.toast-body {
  padding: var(--spacing-md);
  font-size: 0.9375rem;
  color: var(--dark-light);
}

/* 各类型 Toast 的左侧边线 */
.toast-success {
  border-left: 5px solid var(--success);
}

.toast-danger {
  border-left: 5px solid var(--danger);
}

.toast-warning {
  border-left: 5px solid var(--warning);
}

.toast-info {
  border-left: 5px solid var(--info);
}

.btn-close {
  box-shadow: none !important;
}
/* ==========================================================================
   Code Review Evolution & Maturity Index
   ========================================================================== */

.maturity-hero {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    padding: 3rem 2rem;
    border-radius: 1rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.maturity-hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.maturity-score-display {
    text-align: center;
    position: relative;
    z-index: 1;
}

.maturity-value {
    font-size: 4rem;
    font-weight: 800;
    margin: 0;
    line-height: 1;
    background: linear-gradient(to bottom, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.maturity-label {
    font-size: 1.1rem;
    font-weight: 500;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.5rem;
}

.maturity-growth {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.875rem;
    margin-top: 1.5rem;
}

/* Review Highlight Cards */
.review-highlight-card {
    background: #fff;
    border-radius: 0.75rem;
    border: 1px solid #e2e8f0;
    margin-bottom: 2.5rem;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.review-highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.review-header {
    padding: 1rem 1.5rem;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.review-title {
    font-weight: 700;
    color: #1e293b;
    margin: 0;
    font-size: 1.1rem;
}

.review-body {
    display: flex;
    flex-wrap: wrap;
    padding: 0;
}

.review-code {
    flex: 1.5;
    min-width: 450px;
    background: #f8fafc;
    padding: 2rem;
    border-right: 1px solid #e2e8f0;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 0.9rem;
    position: relative;
    overflow-x: auto;
}

.review-analysis {
    flex: 1;
    min-width: 300px;
    padding: 2rem;
    background: #fff;
}

.review-analysis h4 {
    font-size: 1rem;
    color: #334155;
    margin-bottom: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.code-line-feedback {
    background: #fef2f2;
    border-left: 3px solid #ef4444;
    margin: 0.5rem 0;
    padding: 0.5rem 1rem;
    border-radius: 0 0.5rem 0.5rem 0;
}

.code-line-feedback strong {
    color: #991b1b;
    font-size: 0.8rem;
    display: block;
    margin-bottom: 2px;
}

.code-line-feedback p {
    margin: 0;
    color: #b91c1c;
    font-size: 0.9rem;
}

@media (max-width: 992px) {
    .review-body {
        flex-direction: column;
    }
    .review-code {
        min-width: 100%;
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
    }
}

/* ==========================================================================
   Soft UI & Badge Colors
   ========================================================================== */
.bg-soft-danger {
    background-color: #fef2f2 !important;
    color: #ef4444 !important;
}

.bg-soft-success {
    background-color: #f0fdf4 !important;
    color: #22c55e !important;
}

.bg-soft-warning {
    background-color: #fffbeb !important;
    color: #f59e0b !important;
}

.badge-soft-pill {
    padding: 0.35rem 0.75rem;
    font-weight: 600;
    font-size: 0.75rem;
    border-radius: 50rem;
}
/* Shared state and accessibility guardrails. */
.state-page {
    max-width: 720px;
    margin: 4rem auto;
    padding: 3rem 2rem;
    border: 1px solid #dbeafe;
    border-radius: 1.25rem;
    background: linear-gradient(145deg, #eff6ff, #ffffff 62%);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.state-page-code {
    color: var(--primary-color);
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(3rem, 12vw, 6rem);
    font-weight: 700;
    line-height: 1;
    opacity: 0.22;
}

.state-page-eyebrow {
    margin: 1rem 0 0.5rem;
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.state-page h1 {
    margin-bottom: 0.75rem;
    color: var(--dark);
}

.state-page-copy {
    max-width: 34rem;
    margin: 0 auto;
    color: var(--medium);
    line-height: 1.7;
}

.state-page-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.state-page-request {
    margin: 1.75rem 0 0;
    color: var(--medium);
    font-size: 0.85rem;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

/* 提交复核协作 */
.review-queue-page {
    max-width: 88rem;
    margin: 0 auto;
}

.review-queue-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.review-queue-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0 0 var(--spacing-lg);
}

.review-queue-filter {
    min-height: 2.5rem;
    padding: 0.55rem 0.9rem;
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    color: var(--dark);
    background: var(--white);
    text-decoration: none;
}

.review-queue-filter:hover,
.review-queue-filter.is-active {
    color: #1d4ed8;
    border-color: #93c5fd;
    background: #eff6ff;
}

.review-queue-table-wrap {
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-lg);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.review-queue-table {
    min-width: 48rem;
    margin-bottom: 0;
}

.review-queue-table th,
.review-queue-table td {
    vertical-align: middle;
}

.review-queue-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    min-width: 15rem;
}

.review-queue-actions .btn {
    min-height: 2.5rem;
}

.review-queue-empty {
    padding: 3rem 1.5rem;
    text-align: center;
    border: 1px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    color: var(--medium);
    background: #f8fafc;
}

.review-queue-empty i {
    display: block;
    margin-bottom: 0.75rem;
    font-size: 2rem;
    color: #64748b;
}

.submission-review-section {
    scroll-margin-top: 1rem;
}

.submission-review-form .form-control {
    min-height: 7rem;
}

.ai-feedback-signal {
    margin: 0;
    padding: 1rem;
    border: 1px solid #ddd6fe;
    border-radius: var(--radius-md);
    background: #faf5ff;
}

.ai-feedback-signal legend {
    float: none;
    width: auto;
    color: #4c1d95;
    font-weight: 600;
}

.review-dashboard-card {
    border-left: 4px solid #2563eb;
}

@media (max-width: 640px) {
    .review-queue-header {
        flex-direction: column;
    }

    .review-queue-header > * {
        width: 100%;
    }

    .review-queue-header .btn {
        width: 100%;
    }

    .submission-review-header {
        flex-direction: column;
    }

    .submission-review-header .badge {
        align-self: flex-start;
    }
}

/* Learning graph stage one: compact enough for dashboards, readable on mobile. */
.learning-graph-panel {
    margin: 0 0 2rem;
    padding: 1.5rem;
    border: 1px solid #dbe7f5;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #f8fbff 0%, #ffffff 66%);
    box-shadow: 0 8px 24px rgba(30, 64, 175, 0.06);
}

.learning-graph-panel__header,
.learning-graph-concept__heading,
.learning-graph-recommendation,
.learning-graph-panel__summary {
    display: flex;
    align-items: center;
}

.learning-graph-panel__header {
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.learning-graph-panel__eyebrow {
    margin: 0 0 0.25rem;
    color: #2563eb;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.learning-graph-panel__title {
    margin: 0;
    color: #172554;
    font-size: 1.35rem;
    font-weight: 750;
}

.learning-graph-panel__description,
.learning-graph-panel__note {
    margin: 0.35rem 0 0;
    color: #64748b;
    font-size: 0.88rem;
    line-height: 1.55;
}

.teacher-learning-actions {
    border: 1px solid #dbe7f5;
    border-radius: var(--radius-lg);
    background: #ffffff;
    box-shadow: var(--shadow-sm);
}

.teacher-learning-actions-list {
    display: grid;
    gap: 0.75rem;
}

.teacher-learning-action-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    background: #f8fbff;
}

.teacher-learning-action-card h3,
.teacher-learning-action-card p {
    overflow-wrap: anywhere;
}

.teacher-learning-action-card .btn,
.teacher-learning-action-form {
    flex: 0 0 auto;
}

.teacher-learning-action-form {
    margin: 0;
}

.teacher-learning-actions-empty {
    padding: 1rem;
    border: 1px dashed #cbd5e1;
    border-radius: 0.75rem;
    color: #64748b;
    background: #f8fafc;
}

@media (max-width: 640px) {
    .teacher-learning-action-card {
        align-items: stretch;
        flex-direction: column;
    }

    .teacher-learning-action-card .btn,
    .teacher-learning-action-form,
    .teacher-learning-action-form .btn {
        width: 100%;
    }
}

.student-learning-memory-panel {
    margin: 1.5rem 0;
    padding: 1.25rem;
    border: 1px solid #dbe5f2;
    border-radius: 1rem;
    background: linear-gradient(135deg, #f8fbff 0%, #ffffff 78%);
    box-shadow: 0 0.5rem 1.5rem rgba(37, 99, 235, 0.06);
}

.student-learning-memory-panel__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.student-learning-memory-panel__eyebrow,
.student-learning-memory-panel__description {
    margin: 0;
    color: #53657a;
}

.student-learning-memory-panel__eyebrow {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.student-learning-memory-panel__title {
    margin: 0.35rem 0;
    color: #16263d;
    font-size: 1.35rem;
}

.student-learning-memory-panel__description {
    max-width: 44rem;
    line-height: 1.6;
}

.student-learning-memory-panel__privacy,
.student-learning-memory-panel__source {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 999px;
    padding: 0.35rem 0.65rem;
    color: #1f4f8f;
    background: #eaf2ff;
    font-size: 0.8rem;
    white-space: nowrap;
}

.student-learning-memory-panel__state {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 1rem;
    padding: 0.9rem 1rem;
    border-left: 0.25rem solid #8aa8c9;
    color: #40546c;
    background: #f5f8fc;
}

.student-learning-memory-panel__state.is-ready {
    border-left-color: #2f8f67;
    background: #eefaf4;
}

.student-learning-memory-panel__state.is-warning {
    border-left-color: #c88719;
    background: #fff8e8;
}

.student-learning-memory-panel__meta,
.student-learning-memory-panel__sources,
.student-learning-memory-panel__action {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
    margin-top: 1rem;
}

.student-learning-memory-panel__meta {
    color: #53657a;
    font-size: 0.9rem;
}

.student-learning-memory-panel__action span {
    color: #64748b;
    font-size: 0.85rem;
}

.student-learning-memory-panel__source-list {
    margin-top: 1.1rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.student-learning-memory-panel__source-list h3 {
    margin: 0 0 0.65rem;
    color: #334155;
    font-size: 0.95rem;
}

.student-learning-memory-panel__source-list ul {
    display: grid;
    gap: 0.55rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.student-learning-memory-panel__source-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.7rem 0.8rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.65rem;
    background: #fff;
}

.student-learning-memory-panel__source-list li > div {
    min-width: 0;
}

.student-learning-memory-panel__source-list strong,
.student-learning-memory-panel__source-list small {
    display: block;
}

.student-learning-memory-panel__source-list strong {
    overflow: hidden;
    color: #334155;
    font-size: 0.86rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.student-learning-memory-panel__source-list small {
    margin-top: 0.15rem;
    color: #64748b;
    font-size: 0.76rem;
}

.student-learning-memory-panel__source-list form {
    flex: 0 0 auto;
    margin: 0;
}

@media (max-width: 640px) {
    .student-learning-memory-panel__header,
    .student-learning-memory-panel__action,
    .student-learning-memory-panel__source-list li {
        align-items: flex-start;
        flex-direction: column;
    }

    .student-learning-memory-panel__action .btn,
    .student-learning-memory-panel__source-list form,
    .student-learning-memory-panel__source-list form .btn {
        width: 100%;
    }
}

.learning-graph-panel__privacy {
    flex: 0 0 auto;
    padding: 0.35rem 0.65rem;
    border: 1px solid #bfdbfe;
    border-radius: 999px;
    color: #1d4ed8;
    background: #eff6ff;
    font-size: 0.75rem;
    white-space: nowrap;
}

.learning-graph-panel__summary {
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.1rem;
}

.learning-graph-panel__summary span {
    padding: 0.45rem 0.7rem;
    border-radius: 0.65rem;
    color: #475569;
    background: rgba(239, 246, 255, 0.8);
    font-size: 0.8rem;
}

.learning-graph-panel__summary strong {
    color: #1e40af;
    font-size: 1rem;
}

.learning-graph-concepts,
.learning-graph-coverage-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.learning-graph-concept,
.learning-graph-coverage-card {
    min-width: 0;
    padding: 0.85rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    background: #fff;
}

.learning-graph-concept__heading {
    justify-content: space-between;
    gap: 0.5rem;
    color: #334155;
    font-size: 0.9rem;
}

.learning-graph-score {
    font-size: 0.85rem;
    font-weight: 750;
}

.learning-graph-score.is-empty,
.learning-graph-score.is-low {
    color: #dc2626;
}

.learning-graph-score.is-progress {
    color: #d97706;
}

.learning-graph-score.is-stable {
    color: #059669;
}

.learning-graph-progress {
    height: 0.4rem;
    margin: 0.65rem 0 0.4rem;
    overflow: hidden;
    border-radius: 999px;
    background: #e2e8f0;
}

.learning-graph-progress span {
    display: block;
    height: 100%;
    min-width: 0;
    border-radius: inherit;
    background: linear-gradient(90deg, #60a5fa, #2563eb);
}

.learning-graph-next {
    margin-top: 1.1rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.learning-graph-next h3 {
    margin: 0 0 0.65rem;
    color: #334155;
    font-size: 0.95rem;
    font-weight: 700;
}

.learning-graph-recommendations {
    display: grid;
    gap: 0.55rem;
}

.learning-graph-recommendation {
    justify-content: space-between;
    gap: 1rem;
    padding: 0.7rem 0.8rem;
    border: 1px solid #dbeafe;
    border-radius: 0.65rem;
    color: #1e3a8a;
    background: #eff6ff;
    text-decoration: none;
}

.learning-graph-recommendation:hover,
.learning-graph-recommendation:focus-visible {
    color: #1e3a8a;
    border-color: #93c5fd;
    background: #dbeafe;
}

.learning-graph-recommendation.is-static:hover {
    color: #1e3a8a;
    background: #eff6ff;
}

.learning-graph-recommendation strong,
.learning-graph-recommendation small {
    display: block;
}

.learning-graph-recommendation strong {
    font-size: 0.88rem;
}

.learning-graph-recommendation small {
    margin-top: 0.15rem;
    color: #64748b;
    font-size: 0.78rem;
}

.learning-graph-coverage-card {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.learning-graph-coverage-card > div:first-child {
    color: #334155;
    font-size: 0.9rem;
}

.learning-graph-coverage-value {
    color: #1d4ed8;
    font-size: 1.7rem;
    font-weight: 750;
    line-height: 1;
}

.learning-graph-coverage-value small {
    margin-left: 0.15rem;
    color: #94a3b8;
    font-size: 0.75rem;
    font-weight: 500;
}

.learning-graph-status {
    padding: 0.2rem 0.45rem;
    border-radius: 999px;
    font-size: 0.7rem;
    white-space: nowrap;
}

.learning-graph-status.is-warning {
    color: #92400e;
    background: #fef3c7;
}

.learning-graph-status.is-muted {
    color: #475569;
    background: #f1f5f9;
}

.learning-graph-status.is-good {
    color: #166534;
    background: #dcfce7;
}

.learning-graph-empty {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: 1px dashed #bfdbfe;
    border-radius: 0.75rem;
    color: #475569;
    background: rgba(239, 246, 255, 0.65);
    line-height: 1.55;
}

.learning-graph-empty > i {
    margin-top: 0.15rem;
    color: #2563eb;
    font-size: 1.25rem;
}

.learning-graph-empty strong {
    color: #1e3a8a;
}

.learning-graph-panel__note {
    margin-top: 0.85rem;
    font-size: 0.76rem;
}

@media (max-width: 768px) {
    .learning-graph-panel {
        padding: 1.1rem;
    }

    .learning-graph-panel__header {
        align-items: flex-start;
        flex-direction: column;
    }

    .learning-graph-concepts,
    .learning-graph-coverage-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 480px) {
    .learning-graph-concepts,
    .learning-graph-coverage-grid {
        grid-template-columns: 1fr;
    }
}